HarmonyOS鸿蒙Next中rcp网络组件是否支持大文件上传

demo:
  import { BusinessError } from '@ohos.base';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { rcp } from '@kit.RemoteCommunicationKit';
import { util } from '@kit.ArkTS';
let encoder = new util.TextEncoder();
let uploadUrl: string = 'http://xxx:8080/upload';
function testRcpMultiPartUpload(): void {
  let multiFormFieldValue1 = buildMultipartFormFieldValue('1.txt', '111', 'text/plain');
  let multiFormFieldValue2 = buildMultipartFormFieldValue('2.txt', '222', 'text/plain');
  let headers: rcp.RequestHeaders = { "content-type": 'multipart/form-data' };
  const session = rcp.createSession();
  const multiForm = new rcp.MultipartForm({ file: [multiFormFieldValue1, multiFormFieldValue2] });
  let req = new rcp.Request(uploadUrl, "POST", headers, multiForm);
  session.fetch(req).then((response) =>
  { hilog.info(0x0000, 'testTag', 'success %{public}s', JSON.stringify(response)); })
    .catch((err: BusinessError) =>
    { hilog.info(0x0000, 'testTag', 'error %{public}s', "err:" + JSON.stringify(err)); })
    .finally(() =>
    { session.close(); });}
function buildMultipartFormFieldValue(fileName: string, content: string, contentType: string): rcp.MultipartFormFieldValue {
  let result: rcp.MultipartFormFieldValue = { remoteFileName: fileName, contentOrPath: { content: encoder.encodeInto(content).buffer }, contentType: contentType }
  return result;
}
@Entry
@Component struct Index {
  @State message: string = 'Hello World';
  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(() =>
          { testRcpMultiPartUpload(); }) }
      .width('100%') }
    .height('100%')
  }
}

在HarmonyOS鸿蒙Next中，rcp网络组件支持大文件上传。rcp（Remote Communications Protocol）是鸿蒙操作系统中的一种网络通信协议，用于设备间的数据传输。它提供了高效的数据传输机制，能够处理大文件的上传和下载任务。rcp组件通过分块传输、断点续传等技术，确保大文件在网络不稳定或中断的情况下仍能可靠传输。开发者可以通过调用相关的API接口，实现大文件的上传功能。具体实现细节可以参考鸿蒙开发者文档中的rcp组件部分。